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mosaicism

[ moh-zey-uh-siz-uhm ]

noun

, Biology.
  1. a condition in which an organism or part is composed of two or more genetically distinct tissues owing to experimental manipulation or to faulty distribution of genetic material during mitosis.


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Word History and Origins

Origin of mosaicism1

First recorded in 1925–30; mosaic + -ism
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Example Sentences

This results in what is called "mosaicism," where genetically different cells occur within one individual.

“Somatic mosaicism is likely playing a role” in these conditions, D’Gama says.

This mix of cell lines is called mosaicism.

A first pregnancy is questioned when test results indicate abnormal chromosomes — mosaicism — in the unborn child.

But out of eight embryos edited using CRISPR, Rebrikov’s team found evidence of mosaicism in only three of them at the blastocyst stage, when they are 5 days old and have about 250 cells.

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